The length of a rectangle is increased by 10% and breadth is decreased by 10%. Then the area of the new rectangle is
- A. neither increased nor decreased
- B. increased by 1%
- C. decreased by 1% ✓
- D. decreased by 10%
Correct Answer: C. decreased by 1%
Explanation
Using the successive percentage change formula x + y + \frac{xy}{100}: 10 - 10 + \frac{10 \times (-10)}{100} = -1\%. Thus, the area is decreased by 1%.
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